> This is true to the degree that a show about a Japanese man who crushes business cards to get a reaction was invented.
This is not at all "a show about a Japanese man who crushes business cards to get a reaction."
The clip you have linked is labelled as being from "Gigazeus" which is apparently a comedy tokusatsu (like Power Rangers) show. Since I was confused as to why there were other clips with the same person that didn't seem to be from this show, I wasted some time researching this and determined the following:
There was a series of dumb comedy tv shows that were supposed to be lessons in how to make people angry. In these shows, this actor (Shinichi Usui) was supposed to be a professor, who demonstrated how to make people angry by disrespecting them. The person who directed these shows then went on to direct the show the clip you have linked is from, and apparently brought on the same actor to do essentially the same thing but as a different character.
This was simply a short gag on two different shows directed by the same person that was more about the silly facial expression made by the actor than about the actual destroying of the business cards.
I have taken the time to write a reply (to this comment that is arguably only tangentially related to the original link) that is arguably unnecessarily detailed because misinformation about Japan and Japanese TV shows seems to be so prevalent on the internet. In particular, I want to dispel the idea that the very idea of crushing business cards is somehow so shocking to Japanese people (more than it would be in other countries) that there would be a reality show just about someone crushing business cards.